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Nevertheless, from this statement by Mohl, I have ranked this species amongst the tendril-bearers; if classed exclusively by its foliar tendrils, it would be doubtful whether it ought not to have been placed amongst the leaf-climbers, with its allies, Fumaria and Adlumia.
The leaves of at least two, and probably of most, of the species of Clematis, of Fumaria and Adlumia, spontaneously curve from side to side, like the internodes, and are thus better adapted to seize distant objects.
The tip of one of these basal leaves, whilst young, described in 1 hr. 36 m. a narrow ellipse, open at one end, and exactly three inches in length; a second ellipse was broader, more irregular, and shorter, viz., only 2.5 inches in length, and was completed in 2 hrs. 2 m. From the analogy of Fumaria and Corydalis, I have no doubt that the internodes of Adlumia have the power of revolving.
The petioles, however, do not move over a wide space, as could be seen when a shoot was securely tied to a stick. The leaf in this case followed an irregular course, like that made by the internodes. Adlumia cirrhosa. I raised some plants late in the summer; they formed very fine leaves, but threw up no central stem.
Plants which climb by the aid of spontaneously revolving and sensitive petioles Clematis Tropaeolum Maurandia, flower-peduncles moving spontaneously and sensitive to a touch Rhodochiton Lophospermum internodes sensitive Solanum, thickening of the clasped petioles Fumaria Adlumia Plants which climb by the aid of their produced midribs Gloriosa Flagellaria Nepenthes Summary on leaf-climbers.
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